Flora of North America species comparison

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Gutierrezia serotina

late snakeweed
Habit Subshrubs, 15–30 cm.
Stems

glabrous.
Leaves

basal absent at flowering;

cauline blades 1-nerved, linear to filiform, 0.5–1 mm wide, reduced distally.
Involucres

narrowly campanulate (lengths ± equaling diams.), 3–4 mm diam.
Ray florets

4–9;

corollas yellow, 2.3–4(–5.4) mm.
Disc florets

(8–)10–12(–17).
Heads

borne singly or (sessile in glomerate clusters of 3–5) in loose arrays.
Cypselae

1–1.2 mm, faces densely strigoso-sericeous (hairs ± twisted, apically attenuate);

pappi of 1–2 series of oblanceolate scales 0.5–1 mm.
Phyllary

apices flat.
2n

= 8.

Gutierrezia serotina
Phenology Flowering Apr–May and/or Aug–Oct.
Habitat Grasslands, Larrea flats
Elevation 400–1200 m (1300–3900 ft)
Distribution
from FNA
AZ
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 20, p. 94.
Parent taxa Asteraceae > tribe Astereae > Gutierrezia
Sibling taxa
G. arizonica, G. californica, G. microcephala, G. petradoria, G. pomariensis, G. sarothrae, G. sphaerocephala, G. texana, G. wrightii
Synonyms G. polyantha
Name authority Greene: Pittonia 4: 57. (1899)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

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